
Vannes, France · Sunday 14 September 2025
The Semi-Marathon Auray-Vannes takes runners through the charming landscapes of Brittany, France, offering a combination of stunning coastline, quaint villages, and peaceful countryside. The course runs from the historic town of Auray to the coastal city of Vannes, providing runners with the opportunity to enjoy some of the most scenic areas of the region. Participants will pass through ancient stone villages, green fields, and the peaceful shores of the Gulf of Morbihan, with its beautiful isla
Adjusted Time
4:02:57
Time difference: +3.0 minutes compared to a flat, road, temperate course.
Semi-marathon Auray - Vannes is a full marathon held in Vannes, France, scheduled for Sunday 14 September 2025. The course is run on road surface with 211m of total elevation gain, reaching a maximum altitude of 50m above sea level. For registration and full race details, visit the official Semi-marathon Auray - Vannes website.
With 211m of elevation gain, this is a moderately undulating course. The route ranges from 4m to 50m above sea level (46m total range). While not completely flat, the elevation changes are manageable for most runners and shouldn't significantly impact pacing strategy.
Based on historical weather data for September, the expected race day conditions are as follows. Moderate temperatures between 15°C and 20°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance over the full distance. There is a high chance of rain (60%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.
Semi-marathon Auray - Vannes is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Semi-marathon Auray - Vannes is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Semi-marathon Auray - Vannes against other marathons to find the right race for your goals.
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